In the most malarious town on earth, I find Dr. Matthew Emer at his desk behind two sets of fly screens and under a ceiling fan. I introduce myself and tell Emer I am reporting on a campaign to wipe malaria off the planet. If I want to know why that is important and how …

By late June and early July, when their goats were all gone and the last of their cows had sunk to their knees and died, the men told their families it was time to leave. In Daynunay, Haji Hassan and his children packed up what they had — a few rags, plastic bottles, some old …